Stenciling-machine.



N. WOOD.

STENOILING MACHINE.

APPLICATION FILED FEB. 19, 1912. 1,071,658. Patented Aug. 26, 1913.

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N. WOOD.

STENOILING MACHINE. APPLIOATION IILBD FEB. 19, 1912.

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N. WOOD.

STENCILING MACHINE.

APPLICATION FILED 313.19, 1912.

Patented Aug. 26, 1913.

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N. WOOD.

STENGILING MACHINE.

APPLICATION FILED FEB.19, 1912.

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NELSON WOOD, OF HAMILTON, ONTARIO, CANADA.

STENGILING-MACHINE.

Specification of Letters Patent.

PatenteclAug.26,1913.

Application filed February 19, 1912. Serial No. 678,544.

To all whom it may concern:

Be it known that I, NELSON WOOD, a citizen of the Dominion of Canada, residing at 271 King street east, in the city of Hamilton, in the county of Wentworth, Province of Ontario, Dominion of Canada, have invented a new and useful Stenciling-Machine, of which the following is a specification.

This invention relates to a stenciling machine, and it has for its main object to provide an improved machine which is automatic in action and by the use of which manual stenciling is dispensed with.

Other objects of the invention will hereafter appear and'it consists generally in the various constructions and combinations of parts as hereinafter described and particularly pointed out by the appended claims.

In order that the invention may be fully understood reference will be made to the accompanying drawings in which Figure 1, is a perspective view of the complete machine with one of the stencil brushes disconnected or in the inoperative position. Fig. 2, is a similar view but showing the brushes in the reverse position. Fig. 3, illustrates in side elevation a convenient way of adjustably fixing the machine to a wall or the like. Fig. 4, is a slightlyvaried form of supporting means whereby the machine can be traveled along the wall or moved over a more extended area. Fig. 5, is a front view of the same with parts removed for the sake of clearness. Figs. 6, 7, 8, are details hereinafter more specifically referred to. Fig. 9, is a view of a hammer head adapted for fitment in the machine for pinning, pounding or perforating work.

Like reference numerals designate the same or similar parts in the various figures.

Referring more particularly to the first two figures, 1, designates a bracket for fixture to a wall or other convenient surface by means of bolts 2, 2, or in any other convenient manner. This bracket ,1, is provided with spaced projections mounted on the axle 8, a double-grooved pulley 9, one of said grooves receiving the power belt or band 10, and the second groove serving to transmit power as here'- after explained The forward end of the arm 6, is forked at 11, to receive the arms 12, 12, of a skeleton frame 13, and between said arms a horizontally revoluble twin-grooved pulley 14, said parts 11, 12, being hingedly connected together on the axis 15, of the pulley 14.

16, is an endless crossed band or belt passing over the second groove in the pulley 9, above referred to, and connecting with the lower groove in the pulley 14, just described and from which it will be seen that a vertical motion is converted into a horizontal one.

The skeleton frame 13, consists in addition to the arms 12, 12, of pairs of spaced members 17 18, and a forwardly extending toe piece 19, and between the rearward pair of spaced members 18, I hinge by a pin 20, one end 21, of an arm 22, which is provided medially of its length with an eye-piece or expanded portion 23, in which is revolubly mounted on a spindle 24, a twin-grooved pulley 25. This pulley 25, is connected by a crossed belt or band 26, with the upper groove of the above mentioned pulley 14, whereby a horizontal drive isconverted into a vertical one. The hinged arm 22, is spring controlled or elastically mounted by means of a spiral spring 27 one end whereof is linked by an eye 28, adjacentthe frame 13, and the other end whereof is similarly connected to a Z-shaped bracket 29, bolted or otherwise attached to said frame as clearly illustrated by Figs. 1 and 2, and the toe piece 19, above referred to serves as a support for the arm 22, when in its lowermost position. At the forward end of the arm 22, I mount a pulley 30, which is driven by a belt or band 31, from the second groove of the twin-pulley 25, aforesaid, and on the outer ends of its axis or spindle I rigidly secure cams or eccentric disks 32, 32, preferably arranged at an angle of one hundred shoulders 35, 36, and holding down lugs 37, as well as side straps or braces 38, 38, adapted to fit snugly into recesses provided for the purpose in the sides of the arm 22. Projecting upwardly from the aforesaid bridge piece 34, is an arm or bar 39, furnished with a series of pin-recesses 40, 40, for the purpose hereafter explained.

41, is a vertically adjustable collar fitting on the bar 39, and adapted to be locked in sit u on said bar by any appropriate means such as a set screw 42, engaging into one of the pin-holes or recesses 40, 40.

43, 43, are laterally projecting arms from the collar 41, each of which is fitted with a depending hook 44, having hooked thereon one end of a tension spring 45, the other end whereof is similarly connected to the toe of a pivoted lever 46. These levers 46, 46, are provided with holes 47, 47, by means of which they are pivoted on pins 48, 48, and are held in place conveniently by split pins 49, 49; or any other suitable device may be employed. By providlngthree holes 47, 47, in each lever 46, the throw of said lever can be adjusted as will be obvious to those skilled in the art to which my invention appertains, and said levers are arranged to be locked in the raised position by laterally movable latches 50, 50, mounted in pro jections 51, 51, on the sides of the bar 22, above described.

52, are compression springs normally tending to force the latches 50, 50, forward or into operative connection with the inner ends of the levers 46, 46.

53, 53, are pivoted levers mounted on pins 54, 54, at the sides of the bar 22, rearward of the latches 50, 50, and to which they are hingedly connected at 55, To the upper ends of the levers 53, 53, I hingedly connect finger rods 56, 56, which are guided through holes 57, 57, in the bridge piece 34, aforesaid. Each lever 46, is provided with a wiped out or curved path 58, arranged to contact with the superposed eccentric disk 32, when its latch 50, is released by pulling the finger rod 56, forwardly, said lever 46, being automatically held in firm contact with the disk by the action of its tension spring 45, as will be clearly understood on an examination of the drawings. At the forward end of each lever 46, I fit a hinged clamping device 59, adapted to be firmly locked about the stenciling brush 60, by means of a winged nut 61, and laterally projecting spikes or teeth inside the said clamping device which are arranged to be forced into the shank of the brush in the well known way, Obviously by duplicating the arts 32, 46, and 60, provision may bermadc for the use of any number of "brushes arran ed in line and itClilJtGCl for separate or conjoint use.

61 see more clearl 1n F1 6 1s a brid e guide or hanger fixed on the arm 22, by set screws passed through the holes 62, 62, im mediately to the rear of the cam disks 32, 32, and it is furnished with depending guides 63, 63, which house the rear ends of levers 46, above described, and thereby prevent any lateral displacement. The lower ends of said guides 63, 63, are closed in and form stops to limit the downward movement of the heels of the levers 46, when the brushes 60, 60, are raised.

64, 64, are blocks of rubber pinned into the upper parts of the guides 63, to serve as shock absorbers and to prevent hammering of the parts 32, 58. l/Vhen the machine is fitted for three or more brushes, 60, 60, it will be obvious that the guides 63, will be corresponding in number.

In some instances, and where it is desired that the machine shall be self con tained or adapted to be electrically actuated, I may employ the method of fixing same to a wall or the like indicated in Fig. 3. This means consists of reversely superposed wall brackets, 65, 65, provided with sockets into which are fitted the upper and lower ends of a column or post 66, provided with a vertically movable sleeve 67, supported on a collar 68, adapted to be locked in position at the desired heightby a pin 69, passing therethrough and through one of the lateral holes 70, 70, in said post 66. Formed integrally 011 the vertically movable sleeve 67, are laterally projecting sockets 71, 71, having holes therein into which are fitted correspondingly shaped projections 72, 72, on the inner end of the arm 6, and said parts are locked together by a vertically situated pin 73, passed through alining holes therein. In this case I preferably form the arm 6, with a box shaped part 74, into which is fitted and secured a one-eighth horse-power electric motor 75, of any approved type, on the shaft 76, of which the twin pulley 9, above referred to is securely keyed. Power is applied by the connections 77, and it will be apparent that the motor 75, may be otherwise placed so long as a direct drive to the twin grooved pulley 14, is insured. Obviously the wall brackets 65, 65, may be substituted by ceiling and fioor plates when the machine can be swung through a complete circle with the column or pillar 66, as its axis and said machine can be raised or loweredto any desired level.

In Figs. 4 and 5, I have shown a simple arrangement whereby the machine is ren-- dered travel-sable, or in other words its field of operation may be extended over an indefinite length. In this instance, I fit the bracket 1, with anti-friction grooved rollers 78, 78, which are arranged to be traversed over guide rails 79, 79, carried by wall brackets, 80, 80, in the well known way. The bracket 1, in this case is furnished hand stenciling.

with spaced lugs 3, 3, between which the projections 72, 72, are hingedly retained by the'vertically situated pin 73.

It will be apparent that a machine fitted to travel over extended tracks as above set forth will be exceedingly useful for the stenciling of curtains, wall papers, lettering on awnings and the like where long distances have to be covered.

In Fig. 9, I have illustrated a simple devicewhich may be substituted for one of the brushes 60, and used as a hammer or pounder, and it consists of a steel hammer head 81, which is adapted for fixture in the clamping device 59, and may then be em ployed for pounding substances perforating or pinning papers and the like.

In use, and assuming the machine is fitted with two brushes as shown in Figs; 1 and 2, the operator just turns on the power to the pulley 9, which by means of the belt 16, communicates power to the pulley 14, from which it is transmitted by the belt 26, to the pulley 25, and in turn from thence by the belt 31, to the pulley 30, which is preferably rotated contra-clock-wise at a speed of from five-hundred to one-thousand revolutions per minute. This operation sets the eccentrics 32, 32, correspondingly in rotation. The operator then dips one of the brushes 60, on to the plate of color by pressing down the handle 33, in opposition to the spring 27. The corresponding finger rod 56, is then drawn forward releasing the latch 50, whereupon the cam 32, contacts with the swept part 58, of the lever 46, and the brush 60, is caused to be rapidly vibrated in a vertical direction thus producing a constant hammering effect. The machine is manipulated over the desired part of the stencil plate by the handle 33, and the stenciling is rapidly and smoothly effected, the color being evenly distributed and better spread. By raising the lever 46, with the fingers it is locked in the inoperative position by its latch 50. I wish it to be particularly noted that I arrange the ends of the finger rods 56, 56, adjacent the handle 33, whereby the operator need only employ one hand on the machine and have the other one quite free.

From the foregoing description and annexed drawings it will be readily seen that by my invention I have effected a great improvement in the method of stenciling, the machine being applicable for all purposes where rapid stenciling is necessary. I have found by experiment that by increasing the tension of the springs 45, 45, my machine will force the color into even, or along hair lines a feature heretofore impracticable by Furthermore one brush alone will do the work of four or five hand stencilers with better results. Furthermore by my invention the life of the brushes is increased and the height or latitude of the blow may be regulated by moving the levers 46, forward or rearward on their pivots 48.

Any kind of paint may be used and I find that the sharpness of the stencilededges is always uniform and clearly defined, while a great saving is efiected in the amount of colors employed; The thickness of the stencil plates is immaterial, and I preferably make all parts interchangeable, while it is obvious two or more brushes may be put into commission or use at one and the same time without in any way interfering with one another.

Although I have outlined one practical embodiment of my invention I wish it clearly understood that it is not restrictive and that various changes in the form, arrangement of parts and details of construction may be had within the scope of the appended claims, without in any way departing from the spirit and scope, or sacrificing any of the advantages of the invention, and it is intended to include all such within the present application.

Having described my invention What I claim is 1. In a device of the character described, the combination with a bar pivoted for vertical swinging movement, a pair of brush carrying arms pivoted to said bar adjacent the outer end thereof, said arms carrying stenciling brushes at their outer ends, cams for imparting reciprocatory movement to said brushes, springs normally tending to move said brushes downward, said cams actuating said arms against the tension of the springs, a horizontally swinging support in which said bar has its pivotal mounting and means for mounting said support for bodily travel. 7

2. In a device of the character described, the combination with a bar pivoted for vertical swinging movement, a' pair of brush carrying arms pivoted to said bar adjacent the outer end thereof, said arms carrying stenciling brushes at their outer ends, cams for imparting reciprocatory movement to said brushes, springs normally tending to move said brushes downward, said cams actuating said arms against the tension of the springs, a horizontally swinging support in which said bar has its Pivotal mounting, tracks, a bracket mounted for bodily travel upon said tracks, and means for pivotally connecting said support to said bracket.

3. In a device of the character described, the combination with a bar,'of a bracket having a portion overhanging and bearing upon said bar and having depending legs which enter recesses formed in the sides of said bar, fastening means traversing said legs and securing the bracket to said bar, a

member vertically adjustable upon saidbracket, a spring connected-to said member and a brush carrying arm to which the opposite end of said spring is connected.

4. In a device of the character described, the combination with a bar, of a bracket having a portion over-hanging and bearing upon said bar and having depending legs which enter recesses formed in the sides of said bar, fastening means traversing said legs and securing the bracket to said bar, a member vertically adjustable upon said bracket, a spring connected to said member, a brush carrying arm to which the opposite end of said spring is connected, a latch member for locking said arm in a depressed position against the tension of said spring, said latch mechanism comprising a pivoted lever and a manually operable latch releasing member which passes through a portion of said bracket.

In a device of the character described, the combination with a bar, a pair of yokes carried thereby, a pair of pivoted brush carrying arms mounted upon said bar and the rear ends of which lie within and travel within said yokes, elastic buffers located within said yokes and limiting upward movement of said arms therein, springs normally tending to draw said arms upward and toward said buffers, and cams actuated to throw said arms forwardly, against the tension of said springs.

G. In a device of the character described, the combination with a supporting bracket, of an arm pivotally connected thereto for horizontal swinging movement, a power pulley disposed in a vertical plane and carried by said arm, a head block pivotally connected to said arm and capable of horizontal swinging movement with relation thereto, a pivot connecting said head block to the outer end of said arm, a power pulley journaled upon said pivot, a bar pivoted at its rear end in said head block and capable of vertical swinging movement, a spring connection between said bar and the head block, a pair of stenciling brushes supported from said bar, means for imparting movement to said brushes and an operating handle connected to the outer end of said bar, said means comprising a vertically disposed power pulley carried by the bar intermediate its ends, a vertically disposed power pulley carried by the bar, adjacent its outer end, a shaft upon which said pulley is mounted, cams carried by said shaft, arms pivotally connected to said bar and against which said cams act, said brushes being mounted at the outer ends of said arms.

7. In a device of the character described, the combination with a supporting bracket, of an arm pivotally connected thereto for horizontal swinging movement, a power pulley disposed in a vertical plane and carried by said arm, a head block pivotally connected to said arm and capable of horizontal swinging movement with relation thereto, a pivot connecting said head block to the outer end of said arm, a power pulley journaled upon said pivot, a bar pivoted at its rear end in said head block and capable of vertical swinging movement, a spring connection between said bar and the head block, a pair of stenciling brushes supported from said bar, means for imparting movement to said brushes, an operating handle connected to the outer end of said bar, said means comprising a vertically disposed power pulley carried by the bar intermediate its ends, a vertically disposed power pulley carried by the bar, adjacent its outer end, a shaft upon which said pulley is mounted, cams carried by said shaft, arms pivotally connected to said bar and against which said cams act, said brushes being mounted at the outer ends of said arms, andsprings normally tending to throw said brushes downward on their working strokes, said cams elevating said brushes against the tension of said springs.

S. In a device of the character described, the combination with a supporting bracket, of an arm pivotally connected thereto for horizontal swinging movement, a power pulley disposed in a vertical plane and carried by said arm, a head block pivotally connected to said arm and capable of horizontal swinging movement with relation thereto, a pivot connecting said head block to the outer end of said arm, a power pulley journaled upon said pivot, a bar pivoted at its rear end in said head block and capable of vertical swinging movement, a spring connection between said bar and the head block, a pir of stenciling brushes supported from said bar, means for imparting movement to said brushes, an operating handle connected to the outer end of said bar, said means comprising a vertically disposed power pulley carried by the bar intermediate its ends, a vertically disposed power pulley carried by the bar, adjacent its outer end, a shaft upon which said pulley is mounted, cams carried by said shaft, arms pivotally connected to said bar and against which said cams act, said brushes being mounted at the outer ends of said arms, springs normally tending to throw said brushes downward on their working strokes, said cams elevating said brushes against the tension of said springs, and a latch mechanism carried by said bar for locking the brushes in their elevated position.

9. In a device of the character described, the combination with a supporting bracket, of an arm pivotally connected thereto for horizontal swinging movement, a power pulley disposed in a vertical plane and carried by said arm, a head block pivotally connected to said arm and capable of horizontal swinging movement with relation thereto, a pivot connecting said head block to the outer end of said arm, a power pulley journaled upon said pivot, a bar pivoted at its rear end in said head block and capable of vertical swinging movement, a spring connection between said bar and the head block,

a pair of stenciling brushes supported from said bar, means for imparting movement to said brushes, an operating handle connected to the outer end of said bar, said means comprising a vertically disposed power pulley carried by the bar intermediate its ends, a vertically disposed power pulley carried by the bar, adjacent its outer end, a shaft upon which said pulley is mounted, cams carried by said shaft, arms pivotally connected to said bar and against which said cams act, said brushes being mounted at the outer ends of said arms, springs normally tending to throw said brushes downward on their working strokes, said cams elevating said brushes against the tension of said springs and a latch mechanism carried by said bar for locking the brushes in their elevated position, said latch mechanism comprising a longitudinally movable spring actuated bolt.

10. In a stenciling machine the combination with a bar supported for horizontal swinging movement, of a transverse driven shaft carried by said bar, cams carried by said shaft, brush carrying arms pivoted intermediate their ends to said bar, brushes mounted at the outer ends of said bars, said cams acting alternately against the inner ends of said arms, means for driving said shaft, an upstanding support carried by said bar, springs connected to the inner ends of said bars and to said support, latches for locking said arms out of contact with said cams and manually operable controlling members for controlling said latches, said members being slidable through said support.

11. In a stenciling machine the combination with a bar supported for horizontal swinging movement, of a transverse driven shaft carried by said bar, cams carried by said shaft, brush carrying arms pivoted intermediate their ends to said bar, brushes motmted at the outer ends of said arms, said cams acting alternately against the inner ends of said arms, means for driving said shaft, an upstanding support carried by said bar, springs connected to the inner ends of said arms and to said support, a cont-rolling handle at the free end of said bar, latches for locking said arms out of contact with said cams and manually operable controlling members for controlling said latches, said members being slidable through said support and terminating adjacent said handle.

12. In a stenciling machine the combination with a movable bar, of a controlling handle mounted at the outer end thereof, brush carrying arms pivoted intermediate their ends upon said bar, brushes mounted at the outer ends of said arms, a transverse shaft carried by said bar, cams motmted upon said shaft, a pulley mounted upon said shaft between said cams, a yoke carried by the bar, a belt passing through said yoke and over said pulley, a support carried by said yoke and springs extending between and secured to said arms and tosaid suport.

13. In a device of the character described, the combination with a horizontally swinging arm, of a transverse shaft carried thereby, means for driving said shaft, alternately acting cams carried by said shaft, brush carrying arms pivoted intermediate their ends, brushes mounted at the outer ends of said arms, said cams acting against the inner ends of said arms, spring actuated latches mounted to move longitudinally of the horizontally swinging arm for locking the brush carrying arms out of action, levers pivoted intermediate their ends to said horizontally swinging arm, the lower ends of said levers engaging said latches, an operating handle mounted at the outer end of the brush carrying arm and manually operable members connected to the upper ends of said levers and terminating adjacent said handle.

Signed at Hamilton, county of Wentworth, Province of Ontario, Canada, this 8th day of January, 1912.

NELSON l/VOOD.

In the presence of- ALFRED T. BRATTON, E. S. GIIBERT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0. 

